Python Help with .dot code for Graphviz

[UFSJ]

Hi guys!

I'm completely new with dot code to make graph by graphviz and I'm calling by any help. I would like to make a network of, approximately, 1500 nodes, with each node with its position (geographic coordinate) and its own group of bounded nodes. Some nodes have the same position. These nodes may be represented by points with negligible size and bounded by edges represented by thin lines. I would like to obtain some thing like this: https://tuangauss.github.io/projects/networkx_basemap/networkx_basemap.html , but with an unique size for the circle nodes (smaller than the shown picture), with unique color (black) and without label. Below, I let my code with a reduced number of nodes (just 10 nodes).

[CODE lang="python" title="My code:"]strict graph {
node [shape = circle size=0.1];
1 [pos="-61.9961281,-11.9296913!"];
2 [pos="-63.0330696,-9.90765190!"];
3 [pos="-63.0330696,-9.90765190!"];
4 [pos="-61.4420509,-11.4333000!"];
5 [pos="-61.4420509,-11.4333000!"];
6 [pos="-60.8168373,-13.1869869!"];
7 [pos="-60.5454292,-13.1174307!"];
8 [pos="-64.2279739,-12.4367161!"];
9 [pos="-61.0130920,-11.5321751!"];
10 [pos="-65.3327789,-10.7804241!"];
1 -- 4 ;
1 -- 8 ;
1 -- 9 ;
2 -- 3 ;
2 -- 4 ;
2 -- 6 ;
2 -- 7 ;
2 -- 9 ;
2 -- 10 ;
3 -- 4 ;
3 -- 6 ;
3 -- 7 ;
3 -- 10 ;
4 -- 6 ;
4 -- 8 ;
4 -- 9 ;
4 -- 10 ;
6 -- 7 ;
6 -- 9 ;
6 -- 10 ;
7 -- 10 ;
8 -- 9 ;
}[/CODE]

I thanks a lot by any kind of help.

 

[pbuk]

Well that image uses the Python modules Networx and Basemap, but yoy can do this in graphviz too. The graphviz documentation is not easy to follow and it is always easier to start with something close and amend it. Something like this (follow link for demo)?

[CODE lang="python"]
# Using neato engine.

graph {
graph [bgcolor=lightgray]

# Default node styles.
node [style=filled label="" shape=circle width=0.5]

# Nodes.
a [width="1" fillcolor="red" pos="0.5,1!" label="⌂"]
b [fillcolor="blue" pos="0,3!"]
c [width=0 pos="3,1.5!"]
d [fillcolor="orange" pos="-1,0!"]

# Edges.
a -- b
a -- c
a -- d
}
[/CODE]

 

[FactChecker]

Is it acceptable to make a diagram without the map, but with locations that you can use photoshop to overlay the graph on a map, or do you want a completely automated program? I think that the first option would not be too hard, but an automated program with a map might require a different tool than Graphviz.
With so many nodes, the first option would require a program (Perl, Python, etc.) with the logic to generate a .dot file with the desired commands. The second option might require using a different tool as discussed here.

 

[pbuk]

The OP is working in linux (see another thread) and it is a simple matter to combine the graphviz output with a map image using imagemagic's composite command in a script.